Qualcomm Snapdragon X Plus X1P-42-100

The Snapdragon X Plus 8-core (X1P-42-100) is a relatively affordable ARM architecture processor for use in Windows laptops that was unveiled in Sep 2024. This Qualcomm SoC features 8 Oryon CPU cores running at up to 3.4 GHz, along with the 1.7 TFLOPS X1-45 iGPU and the 45 TOPS Hexagon NPU. The super-fast LPDDR5x-8448 memory controller, USB 4.0 support, TB 4 support and PCIe 4 support are all onboard as well.

Architecture and Features

The Oryon cores (2 clusters of essentially identical cores; 8 threads) are mostly based on Nuvia IP and they reportedly make use of the ARM v8.7 microarchitecture. Much like modern AMD and Intel processors, the Snapdragon chip is compatible with USB 4 and thus with Thunderbolt 4 however it does not appear to support eGPUs as of September 2024.

The X1P-42-100 is based on the smaller die codenamed Purwa, unlike most X Elite and X Plus processors. It is believed to have at least 8 PCIe 4 and 4 PCIe 3 lanes for connecting various kinds of devices. NVMe SSDs are supported with a throughput of up to 7.9 GB/s; furthermore, most laptops built around the chip are expected to have 16 GB of LPDDR5x-8448 RAM. There is also a 45 TOPS NPU present for accelerating AI workloads.

Performance

A lot depends on the power targets of a specific system, just like it is with AMD, Intel and Nvidia products. That being said, the average X1P-42-100 competes with older chips such as the Core i5-1245U when executing multi-threaded x86 code. With apps compiled specifically with Windows on ARM in mind, a Core i7-1360P-like performance level is to be expected which is not bad at all for what is supposed to be a budget CPU.

The 3.4 GHz clock speed is only achievable in single-thread workloads. When under multi-threaded load, the CPU cores will run at no more than 3.2 GHz.

Graphics

The X1-45 used here delivers up to 1.7 TFLOPS of performance. Unlike the much faster 3.8 TFLOPS and 4.6 TFLOPS X1-85 iGPUs, this little guy here has much fewer unified shaders and runs at lower clock speeds, too. Games put it a little behind the GeForce MX350; this kind of performance is sufficient for older games and sub-900p resolutions only.

AVC, HEVC and AV1 video codecs can be both hardware-decoded and hardware-encoded whereas with VP9, only decoding is possible. The highest monitor resolution supported is UHD 2160p.

Power consumption

Expect to see anything between 15 W and 30 W under long-term workloads depending on the system and the power profile chosen. The number includes RAM.

The SoC is built with TSMC's N4P process for better-than-average power efficiency, as of H2 2024.

Codename	Oryon
Series	Qualcomm Snapdragon X
Series: Snapdragon X Oryon Qualcomm Snapdragon X Elite X1E-00-1DE 3.8 - 4.3 GHz 12 / 12  6 MB L3 Oryon Qualcomm Snapdragon X Elite X1E-84-100 3.8 - 4.2 GHz 12 / 12  6 MB L3 Oryon Qualcomm Snapdragon X Elite X1E-80-100 - 4 GHz 12 / 12  6 MB L3 Oryon Qualcomm Snapdragon X Elite X1E-78-100 - 3.4 GHz 12 / 12  6 MB L3 Oryon Qualcomm Snapdragon X Plus X1P-64-100 - 3.4 GHz 10 / 10  6 MB L3 Oryon Qualcomm Snapdragon X Plus X1P-42-100 « - 3.4 GHz 8 / 8  6 MB L3 Oryon Qualcomm Snapdragon X X1-26-100 - 2.98 GHz 8 / 8  6 MB L3 Oryon Qualcomm Snapdragon X Plus X1P-46-100 - 4 GHz 8 / 8  6 MB L3 Oryon
Clock Rate	<=3400 MHz
Level 1 Cache	2.3 MB
Level 2 Cache	12 MB
Level 3 Cache	6 MB
Number of Cores / Threads	8 / 8 8 x 3.4 GHz Qualcomm Oryon
Power Consumption (TDP = Thermal Design Power)	30 Watt
Manufacturing Technology	4 nm
GPU	Qualcomm SD X Adreno X1-45 1.7 TFLOPS
NPU / AI	45 TOPS INT8
64 Bit	64 Bit support
Architecture	ARM
Announcement Date	08/28/2024
Product Link (external)	www.qualcomm.com

Benchmarks